Furnace-grate.



No. 873;411. PATENTBD D'Eafloj, 19o?.

H. GHAMBBRLIN.' PURNACB GRATE. APPLICATION FILED SEPT, 14, 1906.

@Uilm eoalea v I w; @gv

' I mmwf part 5 anda horizontall the fuel support is 50 inthe heavier and HENRY C, CHAMBERLIN, 'OF OLYPHANT, PENSYLVANIA."

l Fineliner;enirrr.

No.fs73,411. i

f To yall whom it may concern:

Be i known that I, HENRY C. CHAMBER- LIN, a citizen of the United States, residing at Qlyphant, in the county of Lackawanna and v5 State of Pennsylvania,'have invented new and' useful Improvements in Furnace-Grams, of 4which the following is a specification. This invention is a furnace grate, and has for its object to provide a'grate-bar formed 10 of a serieshof terlocking sections'l-pf novel.

cdnstruction, with means for connectingzand spacing them so as to `permit the use of fine fuel and to provide for a copious supply of air. l

Inathe ac'companl a side i g drawings Fi 1 e is levation of t e grate-bars. FxgiglQ is a kside ielevation'l of one of the grate-bar sect1on`s. ,lFig. 3 is a longitudinal section of one of the grate-bars.v showing the manner in 20 which thejsections are` connected and spaced y Referring specifically to the drawings, the grate-bars com rise a lurality of sections, each of which. as a t -upstanding body extending fuel support u at the top whic 'is also wider than the main portin of the section and is offset laterally on one side only of the'` section. Near the top and bottom of the `body part 30. are openings 7 and8, respectively, which receive rods-9 and 10 for-connecting .the secions, and on one side of the section are losses -11 which extend around the openings 7 and S on the sideof the offset., Near their outer ends the bosses are reduced indiameter as at l,12, which form shoulders 13. The reduced portions of the bosses of one section enter the openings in the adjacent section, andthe shoulders 13 serve to space the sections from each other by, engaging the side of the adj acent section as shown 1n Fig'. 3, Additional means for spacing the sections and holding them in a straight line, are projections 5a adjacent the frontfand rear edges of the section on the' same side thereof as the bosses. The

ends of the connecting rods 9 and .10 are threaded to receiver securing nuts 14 which are seated in recessesjor 'counter-sinks made wider end sections 15 of the grate-bar which 'also have integraljournal sleeves or projections on theJ outer-sides theieof, through which the rock shaft exten s.

with a downward extension. 16 to which is Specification of' Letters .E atent. i' Application filed September 14:. 1906I i Serial No. 334618.

' tering openings 19 in the sections.

ltransverse,

section on which..

lhaving an upstanding body each grate-bar is a section provided rammedA me.l 10,1967.v4 l

attached a link 17 which connects the gratebars. so that' they will be rocked simultaneously.- Thel link 17 will be connected to a suitable 'shaking lever.

The grate-bar herein described rocks or swings-on a shaft 18 extending through regis- The ends of the shaft will be secured in any suitable mannerin the supporting frame of the grate. If desired the end sections ofl the grate-bar can be formed with trunnions for supporting the bar. In this case the shaft 18 will be dispensed with, which reduces the weight of the f grate and provides for a copious supply of air to the grate through the openings 19.

-The manner in which the sec*A nons are connected enables them to be set cn se together thus forming a grate in which fine fuel can be used, and at the same time prov ding for a sufficient supply of air to the gr te, having free access between the body portions of the sections. As the sections are connected at two points they will be held in perfect alinement and relative movement thereof is eiectively prevented.

-I claim:

l; A grate bar comprising a plurality of interlocking sections, each section having an upstanding body part and a e5 horizontally extending fuel support offset laterally from'oneside only of said section, tubular projections on the side only 4of the sections whence the fuel supports are offset `.for spacing them apart and interlocking them, and tie-rods passing through the tubular projections.I

2. A grate bar, transverse, interlocking' sections, each ysection having an upstan ing body part and a horizontally extending fuel support offset laterally from one side tie-rod passing through the body parts and tying the sections together, and s acing projections on the same side of the ody parts as thefuel supports to interlock andto space the sections apart so as tov leave narrow air spaces between the supports and wider spaces between the body parts. 3. A grate bar comprising-a plurality of transverse interlocking sections, each section art and a fuel support projecting) horizonta ly,V therefrom, the outer sections eing wider than the inter'- mediate sections and rovided on their outerv sides' with counter-sin s and intelgal journal projections, tie rods passing t ough the comprising a plurality of only of said. section, a

body parts of the sections and having retaining members seated in the counter-sinks, said body partshavng spacing project-ions to space the sections apart so as to leave narrow air spaces between the supports and Wider spaces between the body parts.

ing .through all the sections and havingT retainingmembers seated in the said countersinks, tubular' spacing and interlocking'projectionson the bodypart's in line with the' counter-Sinhal perforations through the intermediate sections in line with the journals, and auxiliary spacing projections abreast rof the perforations in the body parts.

5, A grate, bar comprising a plurality of transverse interlockin@F sections, each section having an u standing body part flat on one side and a orizontallyextending fuel su port offset laterally from the opposite site thereof, said fuel supports being Wider in the direction of the axis of the grate bar than the bodT parts are thick, so as to leave narrow air spaces between the fuel supports and-wider spaces between the body partsof the sections, tie rods passing through the body parts of the sections and tying them together, and interlocking and spacing projections extending from the side of the body par-ts on which the fuel supports are ofl`set.

In testimony whereof I have signed my name to this specification in the presence of two subscribing' witnesses.

HENRY C. CHAMBERLIN. Witnesses:

P. J. MCGINTY, E. N. SHIRER. 

